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Storing DateTime (UTC) vs. storing DateTimeOffset

...hat user. Secondly if you want to convert for display, you need to have a table of all local time offset transitions for that timezone, simply knowing the current offset is not enough, because if you are showing a date/time from six months ago the offset will be different. ...
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Include intermediary (through model) in responses in Django Rest Framework

...se SerializerMethodField on the object and explicitly query the Membership table like so: class MembershipSerializer(serializers.ModelSerializer): """Used as a nested serializer by MemberSerializer""" class Meta: model = Membership fields = ('id','group','join_date') class ...
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Is the creation of Java class files deterministic?

When using the same JDK (i.e. the same javac executable), are the generated class files always identical? Can there be a difference depending on the operating system or hardware ? Except of the JDK version, could there be any other factors resulting in differences? Are there any compiler opti...
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SSO with CAS or OAuth?

... authorization, but it is not a substitute for the traditional 'USER_ROLES table' (user access). It handles authorization for third-parties. For example, you want your application to integrate with Twitter: a user could allow it to tweet automatically when they update their data or post new content...
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How much size “Null” value takes in SQL Server

I have a large table with say 10 columns. 4 of them remains null most of the times. I have a query that does null value takes any size or no size in bytes. I read few articles some of them are saying : ...
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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?

...unctions, then we can generate highly reliable unique strings. Here is the table showing my research data: Update: I created a simple Heroku app using these functions that returns the token as a JSON response. The app can be accessed at https://uniquestrings.herokuapp.com/api/token?length=15 I hope...
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Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul

... Newer .Net Docs now has a table to help you decide which is best to use in your situation. From MSDN's "New Recommendations for Using Strings in Microsoft .NET 2.0" Summary: Code owners previously using the InvariantCulture for string comparison,...
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?

...mmands. ENTRYPOINT should be defined when using the container as an executable. CMD should be used as a way of defining default arguments for an ENTRYPOINT command or for executing an ad-hoc command in a container. CMD will be overridden when running the container with alternative arguments....
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What is the AppDelegate for and how do I know when to use it?

...cations) or a document singleton (for single document applications) Button/table/view controllers, view delegate methods or other view handling (except for construction of the top-level view in applicationDidFinishLaunching:) -- this work should be in respective view controller classes. Many peop...
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Bootstrap 3 breakpoints and media queries

...hones, 576px and up) @media (min-width: 576px) { ... } // Medium devices (tablets, 768px and up) @media (min-width: 768px) { ... } // Large devices (desktops, 992px and up) @media (min-width: 992px) { ... } // Extra large devices (large desktops, 1200px and up) @media (min-width: 1200px) { ... } ...